Hair drying apparatus



Feb. 28,1933;y (s. wPETERsoN i 1,399,352 HAIQIDRYINGAPPARATUS Fund `1mg. s. 19:51y v2 seetssxwt 1 ,www

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ATTORNEYS.

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Patented Feb. 28, ,1933

PATENT OFFICE GUST PETERSON, I' LONG BEACH, CALIFORNIA;

HAIR DBYING APPARATUS Application nea August s, 1931. semi No. 554,829.

My invention relates to hair drying apparatus, and has for an object the provision of new and effective means for causin relatively'diierent volumes of dry air to e distributed against the head in such manner that a complete drying of the more profuse quantities of hair, such as at the back and at the sides of the head, may be satisfactorily effected within the same periodof time that is required for a thorough drying of the hair at the top of the head or at other places where the growth of hair may be less.`

A further object of the invention is to provide a drier employing an air distributor having means wherein the air from a source of supply will be acted upon at the immediate intake of the distributor in a. manner to cause substantially equal portions thereof to pass to the respective discharge surfaces oitv the distributor.

A further object of the invention is to provide a drier of transparent material, such as glass or other suitable well known material, so that when same is positioned over the headof one whose hair is being treated the operator or attendant w'll be enabled to clearly observe at all times the action of the air upon the hair.

Another objectof the invention isV to pro- 0 vide a. drier which will be'noiseiess when in operation and which will fit comfortably over the head of the user, and one which will be ventilated ina manner that will prevent obj ectionableover-heating of the drier while 1n use.

A still further object f the invention is to provide a drier wherein diffused air currents are induced at all points about the hair, and which said currents will come in lviolent conflict, and one wherein moist air will be rapidly expelled from the device and thereby permit of maximum drying elliciency within a minimum operating interval.

In the drawings, Figure 1 is a vertical longitudinal section through the drier attached to a source of air su ly, parts being shown in full lines;

igure 2 is a. bottom plan view of the drier; Figure 3 is a section taken on line 3-3'of Figure 1;

Figure 4 is a-section taken on line 4-4 of Figure l;

y Figure 5 is a view in elevation of the drier looking into the intake end thereof Figure 6 is a section taken on line 6-6 of 55 Fi ure 1.

n carryin the invention vinto practice, use is made o a substantially parabolic outer body or shell 10 and an inner body or shell 11, which is substantially semi-spheroid in shape, the walls of the latter being spaced apart from the former. The outer shell or body is provided with an annular collar 12 which extends substantially at an acute angle to a perpendicular pedestal 13, and as illustrated, said collar is provided with a hinge lip 14 which is adapted to detachably receive the eye 15 of a hinge or attaching element 16 on the cylindrical extension 17 of a fan casing 18. At a diametrically opposite point 'upon .the cylindrical portion 17 of the fan casing is a latch spring 19 having an effective latchmg portion 20 adapted to engage behind a lug 21 on the flange 12. The said latch spring 19 is formed with a finger engaging 75 extension 22, which may be depressed to efect a release of the latch from the luc' 21 when it is desired to remove the drier from said fan casing. It should be observed that the collar 12 is flared so as to provide a snug 80 fit between the inner walls thereof and the external walls of the cylindrical portion 17 of the fan casing.

The walls of the shells 10 and 11 extend downwardly and forwardly to form an arcuate extension 23 which is adapted to be located about at the neck' when the device is. 'in use, and, as shown, the inner shell at this point is provided with perforations 24 which open onto the head so that streams of air may fbe applied against the hair. The extension of air therefrom. This extension projects downwardly and forwardly in substantial agreement with the extension 23. At each side of thestructure formed by the respective shells are disposed spaced apart depending extensions 27, there being preferably two of such extensions at each side of the structure. With respect to the last named extensions 27, same are somewhat different in construction from the extensions 23 and 25, and it will be observed that at the upper end of each thereof is theposition of j oinder of the inner shell therewith. In this manner, each of the extensions 27 is entirely open at its side which faces the head when the drier is a plied. This is so that greater portions of ry air will be discharged from these extensions 27 than from any other portions of the drier. The crown of the spheroid 11 is provided with spaced-apart perforations 28 of suitable size, the same being preferably smaller than the perforations 24 in the extension 23.

It will be observed that the walls of the shells 10 and 11, at the extensions 23, 25 and,-

27, are substantially in parallelism and that above the crown so that air delivered into the space from the intake end of the portion 17 of the fan casing will be distributed into the respective extensions for discharge therefrom onto the hair of the head. lDue to the fact that a substantial portion at least of the outer shell 10 is substantially a parabola, while a substantial portion of the inner shell is substantially a spheroid, the space between the two shells gradually increases in a direction toward said intake end of the cylindrical portion 17 of said fan casing. New, it will be observed that at the intake end of the portion 17 is an air diffuser 29, the same consisting preferablyA of flat strips 3() of suitable material, and similar fiat strips 31, the latter associated with the former so that the respective strips define a plurality of substantially rectangular cells 32.

i The fan casing 18 may be of any suitable Well-known construction, preferably of the type employing a revolving motor driven fan by means of which a spiral current of air is forced in a forward direction or toward the diffuser. Were it not for the provision of.'

this diffuser, the spiral current of air induced by an action of the fan would result in unequal distribution of air from the drier. With the diffuser, I am able to break up the current as induced by the fan, so that substantially equal portions of inflowing air will be distributed to the respective different outlets of the drier, and then because of the peculiar formation of the respective extensions 23, 25 'and the air will be distributed automatically in graduated quantities so that greater quantities will be discharged against those parts of the head where the hair is moreY profuse than at other parts.- By spacing the walls of the shells 10 and 11 apart, as herein described, and by providingfor graduated distribution of the air from respective portions of the drier, the velocity of the current as induced by the fan is not retarded to the extent that a whistling-or hissing noise would result, and it is incident thereto that the drier is absolutely silent when `in operation. It will be observed also that by the aforestated peculiar construction of the extensions 23, 25 and 27 outlet vents 33 are formed between the respective extensions, so that air laden with moisture will readily find escape from the drier. It manifestly follows, further, that because of the angle of distribution of the respective divided ortions of the incoming air, the currents are rought more or less in violent conflict with each other as the air is discharged from the res ective points of outlet. This induces a favorable drying action within the head receiving space 'of said drier. I have stated that the perforations formed in the extension 23 are preferably smaller than the perforations that are formed in the extension 25. I will now call attention to the fact also that the extension' 23 is considerably larger than the extension 24, so as to extend pretty well around the neck and to expose the perforations where the air will be spent against profuse growth of hair.

I make no claim to any particular type of pedestal for supporting my drier, but it is esired that same be of a form that will permit the entire fan casin with the drier attached to be tilted, and 1t is also preferable that the pedestal be adjustable vertically to meet varying conditions when the drier is best adjusted over the head of a person.

While I have described my drier asV preferably constructed of suitable well-known transparent material, glass of the proper kind being one example, I do not wish to limit myself in this respect. The device may be made of hard rubber and need not necessarily be transparent, or it may be made of metal. However, it is desirable that it be transparent, so that an attendant may observe from outside the exact working condition of the drier at all points about the head. This will enable the operator to control the speed of the fan at the source of air supply so that the intake of air to the drier may be regulated to suit varying conditions.

I claim as my invention: 1. In a hair drying apparatus, an openbottomed double-walled structure, the walls of said structure being spaced apart from. each other, each Wall being substantially cular in horizontal section, means leading into the spacebetween the walls for the admission of air to said space, one of said walls de tensions, each of said extensions being apar l aol Lacasse tui-ed sol as to establish communication between theaforementioned space and the said head receiving chamber, certain of said extensions being larger than others circumferentially of the walls of the said structure.

2. In a hair drying machine, an open-bottomed double-walled structure, the inner wall of the structure defining a head-receiving chamber, the said structure having a circumferential series of arcuate extenslons at the lower portion of the structure, certain of said extensions being larger than others cireumferentially of the structure, the inner wall of the structure bein perforated to afford a lateral discharge o `air into the headreceiving chamber at positions above the said extensions and at positions immediately at the extensions, and means forming a part of v fthe structure adapted for connection in a source of air supply, as and for the purpose set forth.

3. In a hair drying machine, an open bottomed double wall structure, the walls of said structure being spaced apart from each other, the inner wall of the structure defining a hair-receiving chamber, the said structure having a circumferential series of air distributing extensions at` the lower portion thereof, said extensions being in direct communication with the space between the said rforatedfor i 

